Direct memory access system and data handling method
The invention relates to the technical field of chips, and particularly discloses a direct memory access system which comprises a transmission information memory, a priority arbitration module and a transmission control module, the transmission information memory is connected with a CPU through a bu...
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention relates to the technical field of chips, and particularly discloses a direct memory access system which comprises a transmission information memory, a priority arbitration module and a transmission control module, the transmission information memory is connected with a CPU through a bus, the transmission information memory is connected with the transmission control module, and the priority arbitration module is connected with the transmission control module. The priority arbitration module is respectively connected with the transmission information memory and the transmission control module; the transmission information memory is used for storing DMA transmission configuration information and feedback information; the priority arbitration module is used for judging the response sequence of the DMA transmission requests according to the DMA transmission configuration information; and the transmission control module is used for controlling the transmission of the DMA data according to the DMA tran |
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